Device for cooling furnace-fronts



(No Model.)

W. s. MGKBNNA.- DEVICE POR COOLING FURNAGB FRNTS. No. 281,098.

Patented July 10 1883.

ASS

N. PETERS. mAo-mnngnphar. wmngan, n. C.

UNITED STATES WILLIAM S. MCKENNA, OF PITTSBRG, PENNSYLVANIA.

PATENT Brien..

DEVICE Fon comme FuRNAcE-Faoms.

SPECIFICATION forming part of Letters Patent No. 281,098, dated July 10, 1883,

Application 'inea nay 14, 1893.

To all whom it may concern:

Be it known that I, WILLIAM S. MCKENNA, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Devices' for Cooling Furnace-Fronts; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing, which forms a part of this specification, in

. whichl the gure is a front elevation of a wall, a zigzag series of pipes or tubing adapted to receive cold water at an elevated point and discharge the heated water at alow point, and thus have a continuous circulation of cool waterin the pipes, in order to cool the atmosphere near the furnace; and, further, in the combination and arrangement of devices, as hereinafter fully described and'claimed.

The invention is applicable to various kinds of furnaces, as will be readily understood 5 but I Ashall merely describe and illustrate one formt'. c., a puddling-furnace.

In the drawing, A is the working side or the furnace or front; B, the neck or flue, C, the Stoke-hole; D, the vertically-movable door, having bit E and tool-hole c, all of any of the usual forms orconstruction. To the front wall, A, I attach in any suitable manner the series of pipes ortubing d and d', respectively arranged on the portions beside the door D and crossing the face of the furnace either vertically or horizontally in zigzag arrangement, as shown. Series d has the outlet or discharge c, and series d the discharge c',

which preferably crosses along the roof of the furnace to discharge alongside series d. The

' series of pipes cl begins beside door D in the vertical pipe f, and, similarly, the series d be gins at the opposite side of the door in the vertical pipe f', whether the series d and d are arranged vertically or horizontally. On the front of door D are attached two (No model.)

smaller similar series, g and g', of pipes, having a common inlet, h, (where also may be4 arranged the liitingring 'i of the door,) and terminating in the respective downward eX- tensions 7.a le', arranged to iit into and slide in the corresponding pipes, f f, as shown, the iitting being adapted to permit a telescoping of the pipes f and It f without leakage. At inlet 71, water under pressure sufficient to compel its continuous movement through the pipes is introduced, passes downwardly, circulating across the door D,7 whence it passes oit to both sides through series d cl by joints j' k andf le', no matter what the position of the door Dmay be. I thus obtain an uninterrupted circulation of cold water in the 7o traversing pipes and prevent the intolerable heat from prostrating the workman.

A special advantage obtained is that the water circulates first across the door, thus insuring a moderation of the temperature just where most desirablethat is, in the vicinity of the workmanfs head and face, when he is working at the charge in the furnace. If desired, the pipes may be overlaid or protected by a suitable jacket. To accommodate the opening and closing of the door, the general inlet h may be either a iieXible or jointed pipe or a telescoping connection.

I claim as my inventionl. The combination, with a furnace-front, of a series of pipes arranged zigzag across said front and outside the same, and having a consubstantially as described.

2. A furnace-door provided on its outside with a series of zigzag circulating pipes for cold water, substantially as described.

3. In combination with the furnace and its movable door, a series of pipes, g or g', zigzagging across the door and terminating in the downward extension k or k', and a series of zigzag pipes, d or d', across the furnace-front, and beginning at the vertical pipe f or f and discharging at a suitable point, substantially .as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

TnoMAs J. Pii'rrnnsoiv, D. E. Davis.

IOO 

